Gld: Remote execution of arbitrary code

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
mail-filter/gld	<= 1.4	>= 1.5	All supported architectures

Related bugreports: #88904

Gld contains several serious vulnerabilities, potentially resulting in the execution of arbitrary code as the root user.

2. Impact Information

Gld is a standalone greylisting server for Postfix.

dong-hun discovered several buffer overflows in server.c, as well as several format string vulnerabilities in cnf.c.

An attacker could exploit this vulnerability to execute arbitrary code with the permissions of the user running Gld, the default user being root.

3. Resolution Information

There is no known workaround at this time.

All Gld users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=mail-filter/gld-1.5"

4. References

Page updated April 13, 2005

Summary: This is a Gentoo Linux Security Advisory

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